Ideally, if most stores and general services are within 15 to 30 minutes, that would be quite convenient.
However, with AI run cameras & authorization prompts from cell phones, traveling to another part of a city might become more difficult. If an AI human control algorithm says that you have already used up too much of your carbon credits and should remain home, that's not a system fit for free people.
More urban issues at...
https://therabbitportal.blogspot.com/search?q=Exploring+the+15-Minute+City+Concept
